What is the climax of the story of the eged mother?

The climax of the story of the aged mother occurs when the rulers order all old people to be taken to the mountain to be abandoned, and the aged mother offers to go in place of her son. As they climb the mountain together, a miracle occurs, and the mountain is covered in a thick mist, hiding the mother and son from the view of the authorities, allowing them to escape and return to their village.